A corpora



PATENTLD FEB. 9, 1904.

W. BAUER.

MUSIC LEAP TURNER.

APPLICATION FILED IBB. 9, 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

Ifi'VEElL WALEEMAR-EAUER.

PATENTED FEB. 9, 1904.

W. BAUER. MUSIC LEAP TURNER.

APPLICATION FILED FEB. 9, 1903.

2 SHEETS-SHEET 2.

0 MODEL.

.UNITED STATES Patented February 9, 1904.

PATENT" OFFICE.

W ALDEMAR BAUER, OF CHICAGO, ILLINOIS. ASSIGNOR TO ALFXI'A MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

- MUSIC-LEAF TURNER...

SPECIE:GA'IIQN forming part of. Letters Patent No. 751,449, dated February 9, 1904.

I Application filed February 9,1901% Serial No. 14?,445- (No model.)

To aZLwhom it may concern.-

Be it known that I, WALDEMAR BAnER, a citi- "zen of the United States, residing at Chicago,

in the county of Cook and 'State of Illinois,

have invented a certainnew and useful In1-- provement in Music-Leaf Turners, (Case No.

1,) of which the following is a full, clear, conci-se, and exact description, reference being had to the accompanyingdrawmgs', forming v land turning devices,--and has for its'object an 7 improved, simplified, and reliable construction therefor, andjpa'rticularly the provision of meansjfor operating such device independently .of thehands' of the player.

a Although there are, several "devices of the class referred to upon the market, they-are all more or less clumsy, ineiiicient, and unreliable, Furthermore, they aredesigned to be "operated manually by the player, thus interfering with the playing, andgenerally causing ,loss' of time.

. .ing of thesheets of music, the means being In my improved deviceI preferably employ pneumatic means for accomplishing the turnpreferably controlled by the players'foot. I do not wish to be limited to pneumatic means,

however, as other means-controlled by the players foot may readily be employedas, for instance, means operated electromagnetically or. means operated byany fluid under Pressure. i 7

My improved device may be adapted for ads ust-able attachment to any instrument, music-' stand,- or other support, and, in general. comprises a plurality of wings or arms hinged near the center of the device and adapted to be swung from one side tothe other to turn sheets or leaves suspended therefrom, the swinging being accomplished by the actuation of an escapement device by pneumatic or other fluid means controlled by the players foot to successively release the wings to allow them to be swung by suitable springs to turn the sheets or leaves. The leaves are preferably suspended by'means of clips which clamp OYflr wing-supports being removed. Fig. 4 is a side view thereof, the wings and their supports being removed. Fig. 5 is a side view of the clips employed for suspending the leaves.

from the wings.

A horizontally-disposed supporting-frame l 1 haspreferably near its middle a'bearing 2, whereby said frame may be slidably mounted upon an upright post 3 and adjustably secured thereto by a thumb-screw 4. A plurality of horizontally-disposed wings or arms 5 5, from which may besuspended sheets or leaves a,

fastened at their inner ends to the lower ends of vertical rods 6 6. Horizontal arms 7 7, one at the top of each of said rods 6, termi nate in bearings 8 8, engaging an'upright rod 9, mounted at its lower end in a support 9,

extending forward frofn framel. To afford f rigidity, additional horizontal arms 1O 10 are disposed at the lower ends of rods 6 and ter-. minate in bearings 11 11, also engaging the upright rod 9. Coil-springs 12 12 are sleeved upon said rod 9, one under each of the top bearings 88, one end of said springs engaging thehorizontal arms 7 7, the other end engaging a vertical rod 13, mounted at its lbwer end -upon supporting-frame 1, preferably in lugs 14 14. Rods 9 and 13 are preferably integral for mutual support and preferably formed of a piece of wire bent upon itself.

Wings 5 5 are normally horizontally disposed one against theother to the left of rod 9 and rest against the depending'end 15 of the frame 1, the tendency of the coil-springs being to retain the wings inthis position. The right end 16 of frame 1 supports upon thefront of its end an escapement device 17, rotatably mounted lupon a screw or shaft 18. ,The es'Q capernent device serves to hold the wings in a position to the right of rod 9, and upon each actuation of the escapement device, by means to be more fully explained hereinafter, one of the wings is released and is swung back to its normal position to the left of rod 9 by means of the coil-springs 12 12. The escapement device is preferably formed of thin sheet metal and has a body portion 19, engaging shaft 18, and escapement-teeth and 21, extending downward from the body portion and disposed one slightly back of the other. The forward tooth 20 serves to hold the wings in their position to the right and upon rotation of the escapeinent device allows the foremost wing to escape to assume its normalposition .tothe left, the back tooth 21 at the same time assuming a position in front of the remaining wings to prevent their escape. A coil-spring 22 is sleeved upon shaft 18 and upon release of the actuating mechanism serves to return the escapement device to its normal position, tooth 2O replacing tooth '21 in front of the remaining wings, further actuation of the device releasing another wing, and so on. To allow any number of wings to' be quickly turned back after having been'released, I preferably provide the forward tooth 20 with a hinge 23, designed to allow the tooth to swing only backward. A spring 24 serves to return the tooth to its normal position after the turnedback wings have cleared it. To allow of free access 'to the escap'ement-teeth between the wings, I keep the wings properly spaced by means of lugs '25 25 thereon.

I employ novel means for effecting the actuation of the escapement device, which means may be operated by the players foot, thus obviating the necessity of manual manipulation by the player of some mechanical member attached to the leaf-turner, as has been customary in the devices of the prior art. This means preferably consists of a pneumatic device operated by a slight pressure upon an air-bulb by the players foot, each pressure resulting in the release of one wing by the escapement device and a consequent turning over of one of the sheets of music. The device consists of a cylinder 26, suitably, mounted, preferably in a vertical position,,upon the supporting-frame 1. A piston-head 27 engaging a piston-rod28, is adapted to be forced upward upon the entry of air under pressure through an inlet 29 at the bottom of the cylinder. .A cap 30 overthe top of the cylinder serves to guide the piston-rod, said rod having secured toits uppen'end an arm 31. A chain or cord 32 connects the end of said arm with theend of a lever-arm 33, extending sidewise from and preferably integral with the body portion 18 of the escapement device. Thus upon motion of the piston-rod in an upward direction,

the escapement device is actuated. The escapement device may also be operated man-ually by means of a lever 33. I preferably employ a rubber bulb 34, connected by a hose 35 with the inlet 29 0f the cylinder, a slight pressure upon the bulb serving to force the piston-rod upward to actuate the cscapenicnt device.

When the leaf-turner is used in connection with an organ or other wind instrument, the

.air under pressure available in such cases would be perfectly adaptable for operating the piston-head and rod and the escapement device connected therewith.

Either directly or by the use of properlyshaped mountings my improved leaf-turner may be attached to any instrument, musicstand,' or other support. I have shown a mounting adapted for attachment to any upright piano by being clamped over the top thereof and consisting of two preferably tubular parts 36 and 37, telescopically united and secured in any position of adj ustment by means of'a thumb-screw 38. Both parts, tern'iinate at the outer end in jaws 39 and 40, adapted to engage, respectively, the forward and rear edges of the piano-top, the jaws being provided with padding 41, preferably'of felt, to prevent abrasion to the piano. A verticallydisposed bearing 42, attached to the'front jaw 39, is adapted to be slidably engaged by the upright post 3, a. thumb-screw 43 securing said post in any position of adjustment. The supporting-frame 1 may be secured'to the post 3 in a position either above or below the hear-- ing 42, a wide range of vertical adjustment being thus afforded. The hose 35 may conveniently be passed through the tubular parts 36 and 37 and around the back of the piano to the bulb or a valve near the foot of the player.

As a means for suspending the sheets or leaves from the wings 1 preferably employ clips 44, of thin sheet metal, adapted to clamp over the top edge of the leaves and having a hook portion 45 for engaging the top edge of the wings, the lower edge of the hook portion being flared at one end 46 to be more readily slid onto the wings. The clips are preferalfly clamped one back of the other and preferably over the middle of the several leaves, and when the wings are .in the normal position the hook' portion may be slipped thereon at the ends thereof, each successive wing being a trifle longer, whereby the first clip may gain a good seat on its wing before the next clip engages the next wing, and so on. The wings, with the leaves suspended therefrom, are now swung over to the right side to be held by the forward escapement-tooth 20, whereupon by actuation of' the escapement device they are released and the sheets turned, as hereinbefore described.

Where a plurality of leafturners are em-- 2 ployedas, for example, in a band or orchestra several or all may be actuated simultaneously by means of a master-bulb.

Although I have shown and described a preferred embodiment of my improved device,1

from one side of the frame to the other, spring mechanism associated with and tending to retain said wings in a normal position at the left of said rod, an escapementdevice at the right of said rod, a body portion for said device rotatably mounted upon said frame, an escapement tooth normally extending downward from said bodyportion, another escapementtooth normally extending sideward from said body portion, said teeth being adaptedupon rotation of said body portion to engage and to successively release saidwings, a hinge on said downwardly-extending tooth for allowing said tooth to swing backward,..a spring for retaining said tooth in its normal posi-/ tion, said tooth being disposed before the sidewardly extending tooth, a lever extending from said body portion,,and means associated with said lever for actuating said escapement device, s ibstantially as described.

2. In a evice of the class described, thecombination of a supporting:fr'ame, an upright rod mounted thereon, aplurality of'horizontally disposed wings in hinged association with said rod and adapted to be swung about said rod from one side of the frame to the other, spring mechanism assoeiated'with and tending to retain said wings in a normal position at the left of said 'rod, an esca'peme'ntldevice at the right of said rod, a body portion for said device rotatably mounted upon said frame, an escapement' tooth' normally extending'downward from said body portion, another escapementbody portionsfsaid teeth being adapted upon rotation of said body portion to engage and to successively release said wings, a hinge on said d'ownwardly extending tooth for allowing said tooth to swing ba'ckward,--a spring for retaining said tooth in: its normal position, said tooth being disposed before the sidewardly-extending tooth, a lever extending from said body portion, and pneumatic means associated with said lever for actuating said escapement device, substantially as described. 3.- In adevice of the class described, the combination of a supporting-frame 1, a plurality of horizontally-disposed wings, vertical rods 66 secured at their lower ends to the inner ends of said wings, horizontal arms 7-7 extend-. ing from said rods and terminating in bearings, an upright rod 9 mounted upon said frame and engaged by said bearings, coiled springs sleeved upon said upright rod 9, andsadditional upright rod 13, one end of each of,

26' supported upon said frame, a piston-head,

a piston-rod for said cylinder, means connect-1 ing the end ofsaid piston-rod with the end of said lever, and means for introducing fluid under pressure into said cylinder, whereby said piston-rod and said lever connected there-- withare actuated to oscillate said body por tion carrying said ,escapement-tooth, substantially. as described.

4. In adevice of theclass described, the 'combination of a supporting-frame 1,, an upright .rod 13 mounted thereon, a plurality of horizontally-disposed wings in hinged association with said rod and adapted to be swung about said rod from one side of said frame to the other, spring mechanism associated with and tending to retain said wings'in a normal position at the left of said rod, an escapement device at the right of said rod, a body portion 19 for said device rotatably mounted upon said frame, an escapement-tooth 20 normally extending downward from said body portion, another escapemiant-tooth 21 normally extending sidewardly from said body portion, said teeth being-adapted upon rotation of said body portion to engage and to successively release said wings, a hinge 23 for said downwardlyextending tooth, a lever extending from said body' portion, and automatic means associated v with said lever for actuating said escapement tooth normally extending sideward from said device, substantially as described."

5. In a device of the class described, the combination of a supporting-frame 1, a clamp adapted for adjustable attachment to a support, a supporting-post adjustably engaged with said clamp and by said frame, an upright rod mounted upon said frame, a plurality'of horizontally-disposed wings in hingedassociation with said rod and adapted to be swung about said rod from one side of said frame to the other, springimechanism associated with and tending to retain said wlngs- 1n a normal position at the left of said rod, an escapement device at the right of said rod, a body portion 19 for said device rotatably mounted upon said frame, an escapement-tooth 2O normally extending downward from said bodyportion,

another escapement-tooth 21 normally extending sidewardly from said body portion, said teeth being adapted upon rotation of said body portion toengage and to successively release said wings, a lever extending from said body portion, and automatic means associated with said lever for actuating said escapement device, substantially as described.

6. in a device of the class described, the combination of a supporting-frame 1, a clamp adapted .fm' adjustable attachment to a support, a supporting-post adjustably engaged with said clamp and by said frame, an upright rod mounted upon said frame, a plurality of horiZontally-disposed wings in hinged associationwith said rod and adapted to be swung about said rod from one side of said frame to the other, spring mechanism associated with and tending to retain said wings in a normal position at the left of said rod, an escapement device at the right of said rod, a body portion 19 for said device rotatably mounted upon said frame, an escapement-tooth 2O normally extending downward from said .l )ody portion, another escapement-tooth 21 normally extending sidewardly from said body portion, said teeth being adapted upon rotation of said body portion to engage and to successively release said wings, a hinge 23 for said i'lownwardly-extending tooth, a lever-extending from said body portion, and automatic means associated with said lever for actuating said escapement device, substantially as described. 7. in adevice of i'l'ie'class described, the combination of asup orting-frame, aclamp adaptcd for-adjustable attachmentto a support, a supporting-post adiiistably engaged with said clamp and by said frame, an upright rod on said frame,a plurality of horizontally-disposed wings adapted to be swungabout said rod from one side of said frame to the other, spring mechanism associated with said rod and said wings, tending to retain said wings in a normal position at one side of said frame, escapement mechanism for successively releasing said wings from the other side of said frame to allow them to be returned totheir normal position by said spring mechanism, and means for actuating said escapement mechanism, sub stantially as described.

8. In a device of the classdescribed, the combination of a srmporting-frame, a clamp adapted for adjustable attachment to a support, a supporting-post adjustably engaged with said clamp and by said frame, an upright rod on said frame,a plurality of horizontally-disposed wings adapted to be swung about from one side of frame to the other, spring mechai'iism associated with said rod and said wings, tending to retain said wings in a normal position at one side of said frame, escapement mechanism for successively releasing said wings from the other side of said frame to allow them to be returned to their normal position by said spring mechanism, and pneumatic means for actuating said escapcment mechanism, substantiallyas described.

lln witness whereof I hereunto subscribe my name this 4th day of February, A. 1.). 1903.

\VALDEMAR BAUER. \Vitnesses:

H ARV lay L. HANSON LYNN A, WILLIAMS. 

